Roger Vaughan

Coach Damien Hardwick was concerned about the Tigers' injuries immediately after the loss to Geelong last week and his worries proved well-founded.

Apart from Cotchin (knee), they also lost Tyrone Vickery (concussion), Ricky Petterd (calf) and Dylan Grimes (foot) for Saturday's match.

The Tigers have dropped their past three games and are at an early crossroads in a season they aim to return to the finals.

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In a big week for selections, Richmond had some good news with the return of Nathan Foley from injury.

Collingwood regained captain Nick Maxwell, Essendon made six changes - but did not recall Paddy Ryder - and Geelong lost Joel Corey.

Daniel Kerr and Chris Masten are out for West Coast, while Brisbane regain star veteran Simon Black for his first AFL game this season.

Experienced Western Bulldogs trio Daniel Giansiracusa, Robert Murphy and Ryan Griffen return and North Melbourne defender Nathan Grima (soreness) is out as Brent Harvey returns from his six-game suspension.

Campbell Brown is back from the same suspension for Gold Coast on Sunday against Melbourne, but Michael Rischitelli was dropped and Karmichael Hunt has a hamstring injury.

Demons co-captains Jack Trengove (calf) and Jack Grimes (collarbone) are injured, while former Collingwood key forward Chris Dawes will make his debut for the club.

* Along with their four injuries, Richmond dropped Matt White. Shane Tuck, Robin Nahas and Jake Batchelor are the other recalls and former Geelong ruckman Orren Stephenson will make his Tigers debut.

* Port's Sam Colquhoun will make his AFL debut, while they recalled Andrew Moore and Jarrad Redden. Brent Renouf, Matthew Lobbe and Paul Stewart are the outs.

Ryder was also available after serving his three-game suspension, but Scott Gumbleton's good form has kept him out of the side.

* The Cats lost Corey with a knee injury and dropped Jordan Murdoch. Jackson Thurlow will make his senior debut and Jordan Schroder returns.

Paul Chapman will also miss a third week with his hamstring injury.

* While the Magpies regain Maxwell after four weeks out with a fractured wrist for the away match against Fremantle, Tyson Goldsack is out with a hip injury. Caolan Mooney is also back and Jarrod Witts is dropped.

* Fremantle recalled Stephen Hill for Cameron Sutcliffe.

* Along with Kerr (knee) and Masten (illness), the Eagles dropped Callum Sinclair. Matt Rosa returns for his first senior game this season, Mark Hutchings will make his AFL debut and Brad Sheppard is also back.

* Black, finally over his knee injury, leads three Brisbane changes. Andrew Raines and Jordan Lisle also return, with Aaron Cornelius, Billy Longer and Marco Paparone making way for them.

* Lukas Markovic is the fourth inclusion for the Bulldogs, who lost Jake Stringer and Jack Macrae to soreness and dropped Koby Stevens and Christian Howard.